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Finding the Fourth Proportional to 626,153.22, 864,093.11 and 339,673.31

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Solution

The fourth proportional to 626,153.22, 864,093.11 and 339,673.31 is: 468,750.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,153.22 : 864,093.11 = 339,673.31 : x
  2. Step 2: Convert to fraction form
    626,153.22/864,093.11 = 339,673.31/x
  3. Step 3: Cross multiply
    626,153.22x = 864,093.11 × 339,673.31
  4. Step 4: Simplify right side
    626,153.22x = 293,509,366,821.89
  5. Step 5: Solve for x
    x = 293,509,366,821.89/626,153.22
  6. Step 6: Final answer
    x = 468,750.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.